/* TuBoost Professional UI (responsive) */
:root{
  --bg:#0b1020;--bg2:#0f1630;--card:#111a33;--text:#f5f7ff;--muted:#b7c0dd;
  --border:rgba(255,255,255,.10);--shadow:0 14px 40px rgba(0,0,0,.35);
  --radius:18px;--accent:#7c5cff;--accent2:#37d6c6;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
body{
  margin:0; font-family:var(--font); color:var(--text);
  background:
    radial-gradient(1000px 600px at 10% 10%, rgba(124,92,255,.25), transparent 50%),
    radial-gradient(800px 500px at 90% 20%, rgba(55,214,198,.18), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}
.container{max-width:1100px;margin:0 auto;padding:0 18px 54px}
a{color:inherit}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:900}
.logo{width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));
  box-shadow:0 10px 25px rgba(124,92,255,.25)}
.navlinks{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.navlinks a{text-decoration:none;color:var(--muted);padding:8px 10px;border-radius:999px;border:1px solid transparent}
.navlinks a:hover{border-color:var(--border);color:var(--text);background:rgba(255,255,255,.04)}
.hero{padding:16px 0 8px}
.hero h1{margin:0;font-size:clamp(28px,4vw,44px);line-height:1.08;letter-spacing:-.6px}
.hero p{margin:12px 0 0;color:var(--muted);font-size:clamp(14px,1.4vw,18px);line-height:1.6;max-width:78ch}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.badge{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border-radius:999px;border:1px solid var(--border);
  background:rgba(255,255,255,.04);color:var(--muted);font-size:13px}
.grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:18px}
.card{background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.03));
  border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.cardHeader{padding:18px 18px 0}
.cardHeader h2{margin:0;font-size:18px;letter-spacing:-.2px}
.cardHeader p{margin:8px 0 0;color:var(--muted);line-height:1.6}
.calcWrap{padding:18px}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:end}
@media (max-width:820px){.calc{grid-template-columns:1fr}}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
input{width:100%;padding:16px 14px;border-radius:16px;border:1px solid rgba(255,255,255,.14);
  background:rgba(0,0,0,.18);color:var(--text);font-size:18px;outline:none}
input:focus{border-color:rgba(124,92,255,.55);box-shadow:0 0 0 6px rgba(124,92,255,.18)}
.hint{margin-top:8px;font-size:12px;color:rgba(183,192,221,.9)}
.actions{grid-column:1/-1;display:flex;gap:12px;margin-top:6px}
@media (max-width:520px){.actions{flex-direction:column}}
button{cursor:pointer;border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:14px 16px;font-weight:900;font-size:16px;
  color:var(--text);background:linear-gradient(135deg,rgba(124,92,255,.95),rgba(55,214,198,.55))}
button.secondary{background:rgba(255,255,255,.06)}
.results{margin-top:14px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:820px){.results{grid-template-columns:1fr}}
.stat{border-radius:18px;border:1px solid rgba(255,255,255,.10);background:rgba(0,0,0,.16);padding:16px}
.stat h3{margin:0 0 8px;font-size:13px;color:var(--muted);font-weight:800}
.big{font-size:36px;font-weight:950;letter-spacing:-.6px}
.small{margin-top:6px;color:var(--muted);font-size:13px;line-height:1.55}
.table{width:100%;border-collapse:collapse;margin-top:14px;border-radius:18px;border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.14);overflow:hidden}
.table td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.08);font-size:14px}
.table tr:last-child td{border-bottom:none}
.table td:last-child{text-align:right;font-variant-numeric:tabular-nums}
.note{margin-top:14px;border:1px solid rgba(253,186,116,.35);background:rgba(253,186,116,.10);color:#ffd7b1;
  border-radius:18px;padding:14px;line-height:1.6;font-size:14px}
.content{padding:18px}
.content h2{margin:18px 0 10px;font-size:18px;letter-spacing:-.2px}
.content p,.content li{color:var(--muted);line-height:1.7}
.content ul{margin:8px 0 0 18px}
.pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.pill{text-decoration:none;color:var(--text);padding:10px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.05);font-size:13px}
.pill:hover{background:rgba(255,255,255,.08)}
.footer{margin-top:26px;color:rgba(183,192,221,.85);font-size:12px;line-height:1.6}
.ad{margin-top:14px;border:1px dashed rgba(255,255,255,.22);border-radius:18px;padding:14px;text-align:center;
  color:rgba(183,192,221,.9);background:rgba(0,0,0,.12);font-size:13px}